xxx
Array
(
    [0] => Array
        (
            [id] => 864
            [topology] => 4<sup>3</sup>T138
            [link_rcsr] => 
            [in_col] => 3
            [transitivity] => -
            [space_group] => P6322
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            [Year] => 2015
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            [caid] => 202
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            [name] => 
            [pressure] => 
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            [e_gap] => 
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            [shear_mod] => 317.5
            [vicker_hard] => 54.7
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
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            [topology] => 4<sup>3</sup>T138
            [link_rcsr] => 
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            [name] => β-C
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            [energy] => 
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            [ref_file] => /References/2015_PhysLettA_379_2116
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            [ref] => 
        )

)
xxx